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468 = 2(4y x 3y) + 2(4y x 2y) + 2(3y x 2y)
468 = 24y² + 16y² + 12y²
468 = 52y²
9 = y²
3 = y
panjang = 4x = 4(3) = 12cm
lebar = 3x = 3(3) = 9cm
tinggi = 2x = 2(3) = 6cm
vol
= p x l x t
12 x 9 x 6
648cm³
Lp = 2 ( p×l + p×t + l×t )
468 = 2 ( 4
468 = 2 ( 12
468 = 2 ( 26
468 = 52
9 =
3 =
p = 4
l = 3
t = 2